Oliet, J.; Segura, M. L.; Martin Dominguez, F.; Blanco, E.; Serrada, R.; Lopez Arias, M.; Artero, F. Slow-Controlled Release Fertilizers Used in Nursery Seedling Productions. Doses and Formulations Effects on Pinus Halepensis Mill. Seedling Quality. For. syst. 1999, 8, 207-228.